byNitecki, Matthew H; Dapples, Charles C. joint author
A new receptaculitid species is based upon the well-preserved head elements and illustrated with SEM. These structures do not depart from the general dasycladacean pattern, but exclude receptaculitids from sponges Topics: Ischadites tenuis, Paleobotany -- Silurian, Paleobotany -- Indiana
A large concretion in the black shale above Springfield Coal Member (No. V), Desmoinesian Series, Pennsylvanian, from the Blackfoot #5 mine, Pike County, Indiana, contains a piece of fossil wood with excellent preservation of cell structure. Both ends of the wood extending outward to the extremities of the ovoid concretion are replaced by a black calcareous rock in which there is no fossil wood structure. These end zones have sharp contacts with the concretion matrix and their dimensions... Topics: Trees, Fossil -- Indiana Pike County, Paleobotany -- Pennsylvanian, Paleobotany -- Indiana Pike...